[2] The mineral was named after Quintin Wight of Ottawa, Ontario, Canada (b.

[2][6] These hexagonal and trigonal forms of quintinite are both from the hexagonal crystal systems, meaning they both have similar lengths of their crystal axes and the same angles between these axes.

[5] Herg (1977) interpreted the Jacupiranga area as related to a hotspot.

[7] The 3T polytype was originally found in the Poudrette quarry at Mont Saint-Hilaire, which is a rare alkaline intrusive complex.

[4] The 3T polytype, however, is not commonly pleochroic but can show green pleochroism if it is high in iron.